Resideo 393200-1 ECO Adapter

The Resideo 393200-1 ECO Adapter is a critical component for technicians integrating high-limit Energy Cutoff (ECO) switches into residential or commercial gas control circuits. Designed for seamless compatibility with the Honeywell VR8200 series and VR8300 series continuous pilot combination gas controls, this adapter also fits the VR4200 and VR4300 lines. The 393200-1 is a direct replacement for the 393200-1/U, featuring the same factory specifications required for reliable pilot safety circuit maintenance. Each connector is equipped with 1/4" x 0.032" quick-connect terminals, ensuring a secure electrical interface between the high-limit switch and the thermocouple circuit. By allowing the ECO switch to break the thermocouple signal during over-temperature conditions, it facilitates immediate safety shutoff. This adapter eliminates the need for field-modified wiring, providing a professional, code-compliant connection that maintains the integrity of the standing pilot gas valve safety system.

• Universal Compatibility: Engineered specifically for the VR8200, VR8300, VR4200, and VR4300 series gas valves.
• Precise Electrical Tapping: Features standard 1/4" quick-connect terminals for rapid, reliable leadwire connections without soldering.
• Identical Interchangeability: The 393200-1 and 393200-1/U are technically identical, ensuring a perfect fit for existing Honeywell and Resideo systems.
• Enhanced Safety Logic: Enables the quick integration of an external high-limit ECO to monitor plenum temperatures and initiate safety shutdowns.

Is the Resideo 393200-1 compatible with non-Honeywell gas valves?
This adapter is specifically designed for the Resideo/Honeywell VR8201, VR8200, VR8300, VR4200, and VR4300 families. Compatibility with alternative brands is not recommended as the thread pitch and terminal spacing are specialized for these series.

What is the difference between the 393200-1 and 393200-1/U?
There is no technical difference in performance, size, or terminals. The "/U" suffix typically denotes "Universal" packaging in the Resideo catalog, but the physical part remains a 1/4" quick-connect ECO adapter.

Can I use any gauge of wire with this ECO connector?
For optimal signal continuity in the millivolt circuit, it is recommended to use 14 to 18 AWG leadwires and ensure the lengths do not exceed the manufacturer’s specifications for your specific thermocouple model.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.